Furnace Technology In order to maintain a reducing atmosphere in a furnace, it should have No O₂ in flue gas CO in flue gas High excess air None of these No O₂ in flue gas CO in flue gas High excess air None of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Power required in case of forced draught as compared to induced draught (for the same draught produced) is Same More Either more or less; depends on the flue gas density Answer: Option B Less Same More Either more or less; depends on the flue gas density Answer: Option B Less ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Heat transfer rate to the stock/charge in the furnace does not depend upon the Thickness of the stock Emissivity of the refactory walls Use of waste heat recovery equipments Size of the furance Thickness of the stock Emissivity of the refactory walls Use of waste heat recovery equipments Size of the furance ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In case of pulverised coal fired steam boiler, the secondary air serves the main purpose of Transportation of coal Drying of coal Preheating the primary air Combustion of coal by supplying it around the burner Transportation of coal Drying of coal Preheating the primary air Combustion of coal by supplying it around the burner ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In salt bath furnace, heat is transferred to the charge mainly by Conduction Convection None of these Radiation Conduction Convection None of these Radiation ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Heat balance of furnace provides means of determining the Thermal efficiency of the process All of these Sources of heat losses Scope of reduction of heat losses Thermal efficiency of the process All of these Sources of heat losses Scope of reduction of heat losses ANSWER DOWNLOAD EXAMIANS APP
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